Heater



Feb. s 192 1 7 A. 1'. JoHANsoN HEATER Filed Oct. 2. 1924 NKY Patented Feb. '8,1927.

UNITED STATES PATENT oFFl'cE.,

ADOLPH T. JOHANSON, F CHICAGO, ILLINOIS, ASSIGNOR TO CONSOLIDATED BOILEI i CORPORATION, '0F BENTON HARBOR, MICHIGAN, A CORPORATIONiOF MICHIGAN,

HEATER.

Application inea october 2, 1924. serial No. 741,100.

My invention pertains to features of novelty and advantage in the Construction and modes of operation of heaters of various kinds, such as steam-boilers, hot-water heaters, garbage-burners, etc., and it aimsvto provide a structure -of this general character havinga liquid or gaseous fuel-burner for supplying heat and .an associated or supplemental grate, or its equivalent, which may be-used as a garbage or .similar burner, or which may be employed for the combustion of fuel such as coal, wood, or the like.

To this end, in the preferred embodiment of the invention, I provide an efficient and satisfactory oil or gas burner, and, adjacent to this, I supply a grate which may be used to support the garbage or other refuse while it is being dried out by the heat generated at the contiguous or adjoining burner, and on which it may be consumed after it has been sufficiently freed from moisture,

Such grate may, at times, if desired, be employed for the burning of coal, coke, wood or other fuel to supplement or augment the heating action of the adjacent Huid burner, or as a substitute thereforif required.

If preferred. the liquid or gas fuel burner may be of such capacity as to provide adequate heat under all circumstances, or it may be of lesser size or power and supplemented in its heating function under eXtreme 0r unusual conditions, as Weather of' very low temperature, by the combustion of fuel on the nearby auxiliary grate, whereby. the heating surfaces of the appliance under such circumstances are subjected to the conjoint. action of both heating means..

Or, if wanted, as for instance, if it were temporarily impossible to secure fuel for the fluid fuel burner,v the grate may be used alone for sustaining the solid fuel undergoing combustion.

The two heating means are so located that substantially the entire heating surfaces of the appliance are subjected to the action of the heat generated by each.

An aim of the invention is the production vor provision of a novel construction of thisl c a door 28 which, when opened, glves access character which is simple in structure, which operates eliciently. 'which needs little atten? tion, which i s unlikely to become injured or damaged -in ordinary service and which may be manufactured economically.

To permit those skilled in this art to have a full and complete understanding of the invention and its various structural and functional advantages, in the accompanying drawing, throughout the views of which like reference characters have been employed to designate the same parts, I have shown a preferred embodiment of the invention, 'but it is tobe understood that the invention is susceptible of satisfactory incorporation in structures varying more. or less in details of construction.

In' this drawing:

Figure 1 is a longitudinal section through the heater on the-line 1-'1 of Figure 2,- the rotary-burner being unsectioned; and

Figure 2 is a vertical cross-section on substantially the line 2 2 of Figure 1.

Referring to this drawing, it will be seen that the heater has' hollow front, back, end (2) and top walls, characterized 11, 12, 13, 14 and l5 respectively, properly stayed and braced and designed to hold the water to be heated, the structure at its top having a discharge connection '16 for the delivery of the steam or hot water, as the case may be, the water admission pipe for the furnace, boiler, or heater not being shown.

Such heater, of general, upright. rectangular form is supported on a suitably-shaped base 17 divided into two compartments 18 and 19 by an intermediate wall 21 sustainine above it a hollow, division, watercon taining wall 22 connected at its front and rear ends with the interiors-of the corre`A sponding vertical walls, such water wall 22 separating the lower portion of the heater into two chambers 23 and 24.

The upper part of the heater has a numi ber of horizontal rows of hollow,l water tubes or pipes 25 connecting together the interiors of the front and rear walls and designed to be directly subjected to the heat developed in the furnace or heater.

A stack or chimney 26 for the discharge of the gaseous products of combustion conneets with the innerupper part of the heater, above the topmost row of tubes or pipes, through an opening 27 extended'through the end-wall 13 and the latter is equipped with tubes and reaches from the end-wall 13 well over toward,vbu t not to, the opposite endwall 14, and a similar, somewhat shorter,

.lire or combustion chamber to the stack.

Chamberl 24 and its lower compartment 19 are provided with a rotary oil-burner 32, of known construction, operated by an electric-motor 33 positioned outside of the Yfront of thefurnace or heater base, the connecting mechanism extending into compartment l transversely filling the cross-section 19 through an appropriate opening or aperture inthe front base wall.

Burner 32 has associated with it various spaced'walls 34, 35 and 36 of known form, of the chamber 24 and unitedly or coujointly affording a passage for preheating at least some'of the air flowing to the burner to sustain combustion.

The bottom of chamber 23 is equipped with a grate 37 of any suitable or approved designadapted to be shaken by an external handle 38 in the usual and recognized way.

The front wall of the furnace is provided -with a door and doorway39 giving access to the chamber 24 and the burner 32, and in similar manner the chamber 23 has a door and doorway 41, illustrated diagrammatically only in Figure l, giving 4entrance to such space and its grate for the introduction of the garbage or fuel.

The hot gases of combust-ion generated at or produced by the rotary-burner 32 in their flow through the heater to the stack or chimney come into contactwith practically all of the heating surfaces of the appliance.

Garbage or other refuse to be consumed may be inserted through the doorway 41 in the front wall of the heater on to grate v37 where it will become dried or freed from moisture bythe heat to which it is subjected, and, when suiciently -reduced in moisture content, it will become ignited and burned supplying its heat to supplement" that of the oil-burner.

As a substitute for the-heat of the rotary oil-burner or tosupplement the same, any suitable fuel such as coal, coke or Wood may bey burned on the grate 37 and its heat of combustion will be imposed on substantially thesame heating surfaces as are those under the inuence of the burner 32, whereby'the heater may be operated economically and efficiently jby heat generated in either one or both of the two chambers 23 and 24.

Those acquainted with this art will readily understand that -this invention is not restricted to the exact mechanical details of structure presented and that these may be modified within comparatively` wideV limits without departure from the substance of the invention, as dened by` the appended claims, and without sacrifice of any of its substantial benefits and advantages. For example, if desired, more than one rotary burner or more than one grate could be 'employed and used as circumstances mightv dictate.

I claim:

A self-contained fire-box. semi water-tube heater having hollow external walls adaptf ed to contain the fluid to be heated and having -in its lower portion two-compartments arranged side by side and in open communi--4 cation with each other at their tops, a burner arranged tolsupply fuel for combustion in one compartment, and a grate in the second compartment, in combination with baiiie means associated with the heater tubes to cause the products of combustion from the burner to flow over said grate and to cause the heat developed at said burner and on said grate to act on substantially the same extent of heating surfaces of the heater.

In witness whereof I haveA hereunto set my hand and seal.

ADOLPH T. JOHANSON. [L.s.] 

